CN105176108A - Applications of softening oil in preparation of bridging modified asphalt waterproof sealant - Google Patents
Applications of softening oil in preparation of bridging modified asphalt waterproof sealant Download PDFInfo
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Abstract
The invention discloses applications of softening oil in preparation of a bridging modified asphalt waterproof sealant. The softening oil is composed of one or some of mineral oil, synthetic oil, semi-synthetic oil or plant oil. The softening oil can ensure that modified asphalt has excellent physical and chemistry characteristics and can be fused with modifiers well, and a modified asphalt waterproof sealant which can has a good bonding force with concrete basic surface is produced. The invention also provides a softening oil standard during the process of producing a bridging modified asphalt waterproof paint sealant.
Description
Technical field
The present invention relates to a kind of auxiliary material improving pitch use procedure, particularly by softening oil for the preparation of modified asphalt waterproof sealing compound, and the inflation method of softening oil.
Background technology
Pitch in petroleum refining process, fractionates out useful hydrocarbon materials and isolates
gasoline, kerosene,
diesel oildeng light ends, then separate decompression through underpressure distillation (residual voltage 10-100mmHg)
distillatelater residual semisolid or liquid state material, it is by difference
molecular weighthydrocarbon polymer and
nonmetal derivativethe chocolate complex mixture of composition, it is waterproof, also water-soluble hardly, is a kind of waterproof and dampproof and rot-resistant
organic gel gel material.In civil engineering work, pitch is widely used water-proof material and impregnating material, is mainly used in the waterproof of roofing, ground, underground structure, timber, steel anticorrosion.Widely used pavement structure consolidating material in pitch or road engineering, it can build up the bituminous pavement of different structure after proportioning from the mineral material of different composition, application in highways is comparatively extensive.Also may be used for
coating, plastics,
pitchdeng industry.
But the pitch obtained from refinery is because its hydrocarbon polymer is with simple side chain or side chain link, thus pitch is at contact oxygen, light with overheatedly will cause sclerosis, cracking will be caused in atmosphere to leak when exposing as water-proof material and impregnating material, if do not add the quality that process just affects buildings, so people are for decades devoted to carry out modification to pitch always, such as, in pitch, add properties-correcting agent.Described asphalt modifier is the organic or inorganic material of the natural or synthetic added in pitch or asphalt, melting or the pavement performance be dispersed in improvement or raising pitch in pitch.As the mechanical property (intensity and toughness etc.) in order to improve pitch, just adding polymkeric substance, resin, plastics, carbon black, inorganic salt etc. and gaining in strength and the material of toughness.
But due to the dense structure of properties-correcting agent, produce modifying asphalt process and need add softening oil (solvent oil) and linking agent, softening oil can make properties-correcting agent swelling, weakens its Intermolecular Forces, enable to be dispersed in pitch, thus improve the performances such as the high/low temperature of pitch.
The softening oil (solvent oil) of above-described modifying asphalt is a very important medium, a kind of properties-correcting agent that can, make in different modifying asphalts is produced how can be found to soften, dissolve each other with linking agent, additive, negative interaction is not produced to other performance of modifying asphalt again., be that those skilled in the art are at present also in the problem constantly explored.
The softening oil (solvent oil) that relevant modifying asphalt uses at present has a large amount in variety, but also not for some specific product (as waterproof sealing cream, waterproof paint etc.), make a kind of standard of special softening oil (solvent oil), to ensure Uniform Product within the specific limits, ensure quality product.
About preparation method that modifying asphalt coordinates with solvent oil, we retrieve following pertinent literature:
1, a kind of method preparing modifying asphalt, application number: CN201110393394.8 open (bulletin) number: CN102504854A application (patent right) people: Shanxi Inst. of Coal Chemistry, Chinese Academy of Sciences makes a summary: a kind of method preparing modifying asphalt, it is characterized in that within the scope of room temperature to 100 DEG C, with organic solvent and/or the mixed solvent oil gelatin liquefaction heavy product and matrix pitch all to the ability of dispersing or dissolving, make gelatin liquefaction heavy product and matrix pitch mixing, then be separated, recycling design, modifying asphalt can be obtained, wherein the addition of gelatin liquefaction heavy product accounts for the weight percent of modifying asphalt is 5-50%.It is low that the present invention has preparation temperature, the advantage that performance of modified bitumen is good.
2, a kind of road asphalt modifier and preparation method thereof, application number: CN201210142876.0, open (bulletin) number: CN102634218A applies for (patent right) people: Xi'an Technology University, summary: a kind of road asphalt modifier, be made up of following weight percent composition: resinous shale 20% ~ 75%, polymkeric substance 10% ~ 50%, tenderizer 10% ~ 50%; Described polymkeric substance is one or more in polyethylene, ethylene-vinyl acetate copolymer and polyvinyl chloride; Described tenderizer to be boiling range the be aromatic solvent naphtha of 230 DEG C ~ 320 DEG C, or be one or more in 50 ~ No. 100 bi tumenf orr oads.In addition, present invention also offers the preparation method of this road asphalt modifier.Road asphalt modifier of the present invention is Powdered, and during use, additive capacity is accurate, and dispersing property is excellent, and mix is even, easy construction; Road asphalt modifier of the present invention can improve the high-temperature behavior of ordinary road petroleum pitch, and its preparation method is simple, reduces modifying asphalt cost, simplifies modifying asphalt technique.
3, a kind of asphalt modifier, modifying asphalt and asphalt, application number: CN201210344007.6, open (bulletin) number: CN102838874A, application (patent right) people: Shandong University Building, summary: a kind of high-viscosity high-elasticity asphalt properties-correcting agent being applicable to paving steel bridge deck, described asphalt modifier, by weight, its raw material consists of: waste-tyre rubber-powder 3-10 part, polyethylene waste 3-10 part, styrene-butadiene-styrene block copolymer 3-8 part, styrene isoprene styrene block copolymer (SIS) 1-5 part, terpine resin 1-5 part, solvent oil 5-10 part, alcohol ether carboxylate interfacial agents 0.3-0.7 part.In addition, the present invention has obtained modifying asphalt and modified asphalt mixture on this properties-correcting agent basis, and the modifying asphalt 60 DEG C of kinetic viscosities applying this properties-correcting agent obtained can reach more than 300000Pa.s, and grading performance reaches PG88-28; Asphalt has good water stability, higher dynamic modulus, and higher rut dynamic stability and low temperature damage strain, can resist mechanics and the temperature environment of Steel Bridge Deck complexity.
4, a kind of hot-mix cold-lay rubber asphalt mixture, application number: CN201010225682.8, open (bulletin) number: CN102329103A, application (patent right) people: Shanghai Doctorphalt Asphalt Technology Co., Ltd., summary: a kind of hot-mix-cold-laid Rubber Crumb Modified Asphalt Mixture, it is characterized in that, being made up of with gathering materials rubber asphalt; Described gathering materials comprises coarse aggregate, fine aggregate and breeze; Described rubber asphalt comprises the component of following weight percentage: the silane coupling agent of the rubber powder of 1.5-10%, the solvent oil of 5-15%, 0.1-5%, the thermoplastic elastomer of 2-5%, and surplus is petroleum pitch.The present invention, by adding silane coupling agent in the pitch of modifying rubber powder, efficiently solves the segregation problem of rubber powder and pitch.Under normal temperature condition, the hot-mix-cold-laid Rubber Crumb Modified Asphalt Mixture obtained can keep good rarefaction within the time of some months, and properties is stablized.
5, for an asphalt-base cold adhesive for waterproof roll, application number: CN01109850.3, open (bulletin) number: CN1313373A, application (patent right) people: Beijing Dayun Waterproof Material Factory; Beijing University of Technology, summary: a kind of asphalt-base cold adhesive for waterproof roll belongs to technical field of adhesive.It consists of: 30 ~ 40 parts of 90# pitches (weight), 2 ~ 5 parts of ethylene propylene copolymer 1# (weight), 20 ~ 56 parts of 90# ~ 120# industrial solvents, 0 ~ 35 part of 90# gasoline (weight), 3 ~ 9 parts of additives (weight), described additive is in terpenes, rosin, gelatine two or three, 0 ~ 5 part of toluene (weight).This tackiness agent is pollution-free, sticking strength high and low temperature is flexible, can be used as the adhesive specially of SBS modified asphalt waterproof material, also can be used for the WATER REPELLENT of new building and the repairing renovation of various Bituminous concrete surface coil waterproof layer.
6, special regenerator being suitable for regenerating modified asphalt and preparation method thereof, application number: CN200910183162.2, open (bulletin) number: CN101629020A, application (patent right) people: Jiangsu Province Construciton Science Research Institute Co., Ltd; Jiangsu Botexin Materials Co., Ltd, summary: a kind of special regenerator being adapted to regenerating modified asphalt, is joined by following components by weight parts and forms: heavy mineral oil 50.0 ~ 80.0%; Thermoplastic elastic body 10.0 ~ 25.0%; High boiling point solvent oil 10.0 ~ 30.0%; Stablizer 0.5 ~ 4.0%; Oxidation inhibitor 0.1 ~ 1.0%; Antistripping agent 0.1 ~ 2.0%, its preparation method is as follows: a, to be put in reactor by heavy mineral oil and stir and be preheated to 100-130 DEG C; B, thermoplastic elastic body is dropped in reactor, stir 30min, then temperature of reaction kettle is risen to 150-170 DEG C of rapid stirring 15min; C, reactor rotating speed be down to normal stirring velocity and be cooled to 60-90 DEG C, dropping into solvent oil, stablizer, oxidation inhibitor and antistripping agent, continue to be stirred to discharging evenly.Asphalt modification regenerator of the present invention belongs to oleaginous system, and Absorbable organic halogens stores, and for the regeneration of the regeneration particularly modifying asphalt of Bituminous concrete surface recovered road asphalt, can reach the level of new modifying asphalt.
Above-mentioned open source literature is seen, what the softening oil (solvent oil) that current modifying asphalt uses adopted mainly contains mineral oil, high boiling point solvent oil, mixed solvent oil, resinous shale, also has gasoline, kerosene etc., but adopts what kind of softening oil, be made into what kind of standard, can not get enlightenment.
Summary of the invention
The invention provides a kind of for the preparation of the purposes of bridge linking type modified asphalt waterproof sealing compound softening oil and the inflation method of softening oil, what this softening oil can make waterproof sealing cream has excellent low-temperature performance, other performances of product can be kept again, produce sealing compound can with concrete surface generation chemical reaction, produce chemically crosslinked keying action.
Another object of the present invention is to provide a kind of softening oil standard producing the bridging agent modifying asphalt used in the process of waterproof sealing cream.
The softening oil that above-mentioned bridge linking type modified asphalt waterproof sealing compound uses is formed by one or more mixing oils of mineral oil, synthetic oil, semi synthetic base oils or vegetables oil adjustment.Described mineral oil, synthetic oil and semi synthetic base oils are qualified GB oil or nonstandard oil, comprise mineral lubricating oils, complete synthesis lubricating oil, semi-synthetic lubricating oil, hydraulic efficiency oil, peanut oil, Oleum Gossypii semen, plam oil, soya-bean oil or Viscotrol C.
Bridge linking type modified asphalt waterproof sealing compound of the present invention is mixed to get by rubber latex, modifying asphalt, auxiliary agent and softening oil, and the composition of its raw material and content carry out compatibility according to pitch and the material characteristic of rubber latex and the occasion of use; In the modified asphalt waterproof sealing compound that the present inventor prepares at present, synthetic rubber weight of latex number is 1 ~ 80; Emulsified bitumen 10 ~ 80; Bridging agent 0.1 ~ 5; Softening oil 5-30.
Described rubber latex is the mixture of any one or they in styrene butadiene rubber latex, Neoprene latex, SBS rubber latex, polyacrylate(s).
Described modifying asphalt is that emulsified bitumen adds bridging agent modification and obtains.
Described emulsified bitumen is cationic emulsified bitumen, non ionic emulsified bitumen or anionic emulsified bitumen.Wherein:
Cationic emulsified bitumen comprises emulsified bitumen prepared by alkyl polyamine class, oxidation amine, quaternary ammonium salt, amide group amine, imidazolines, lignanoids etc. cationic emulsifier;
Non ionic emulsified bitumen comprises emulsified bitumen prepared by the nonionic emulsifying agents such as ether class, ester group class, amides and heterocyclic breast;
Anionic emulsified bitumen comprises emulsified bitumen prepared by carboxylic acid type, sulfonate type and sulfate type anionic emulsifier.
Described emulsified bitumen can also use SBS modified emulsifying asphalt, SBR styrene-butadiene rubber(SBR) modified emulsifying asphalt, APP Atactic Polypropelene modified emulsifying asphalt, IIR isoprene-isobutylene rubber modified emulsifying asphalt or CR chloroprene rubber modified emulsifying asphalt, BR cis-1,4-polybutadiene rubber modified emulsifying asphalt, IR polyisoprene rubber modified emulsifying asphalt, SIS styrene isoprene styrene block copolymer (SIS) modified emulsifying asphalt, SEBB modified emulsifying asphalt, SEBS modified emulsifying asphalt, NR natural rubber modified emulsifying asphalt, SIR silicon rubber modified emulsifying asphalt, one or more mixtures in the acrylonitrile butadiene rubber modified emulsified bitumen of NBR.
Described bridging agent is silane compound, xylogen, titanate ester compound, phosphate compounds or bimetal compound, accounts for the 0.1-5% of pitch gross weight;
Described auxiliary agent comprises thickening material, dispersion agent, antifreezing agent, antiaging agent, weighting agent etc.
Described softening oil is made up of one or more mixing oils of mineral oil, synthetic oil, semi synthetic base oils or vegetables oil, and its key technical indexes is as follows:
(1) volatile quantity :≤6%;
The described volatile quantity method of inspection: take 100g softening oil with the beaker of 250ml, take total amount m1, be placed in 200 ± 2 DEG C of high-temperature test chambers, constant temperature 1.5h, is cooled to 23 ± 2 DEG C, weighs total amount m2, calculates volatile quantity=(m1-m2)/100g × 100%;
(2) pour point :≤-10 DEG C;
The minimum temperature that can flow when described pour point refers to that softening oil cools under prescribed conditions.Testing method can adopt GB: the method for GB/T3535.
Its key technical indexes of above-mentioned softening oil also comprises:
Viscosity: the kinematic viscosity of 40 DEG C is 10-200mm2/S; Testing method: the method that can adopt GB GB/T265.
Described kinematic viscosity is express liquid the measuring of internal friction when flowing under gravity, and its value is compare between the kinetic viscosity of liquid under uniform temp and its density;
Flash-point: >=180 DEG C;
Described flash-point is under regulation test conditions, and test flame causes sample vapor ignition, and makes propagation of flame to the minimum temperature of fluid surface, under being adapted to 101.3kPa normal atmosphere; Testing method: the method that can adopt GB GB/T3536.
Outward appearance and smell: drop on filter paper with glass stick and observe, the spot on filter paper is faint yellow to yellow, and nonirritant taste;
Moisture :≤0.2%; The testing method of moisture adopts the method for GB: GB/T260.
Throw out or mechanical impurity :≤0.2%; The testing method of mechanical impurity adopts the method for GB: GB/T511.
Described mineral oil, synthetic oil and semi synthetic base oils are qualified GB oil or nonstandard oil.
The inflation method of the softening oil in described modified asphalt waterproof sealing compound production, it is characterized in that, according to volatile quantity, pour point, or add the technical indicator of viscosity, flash-point, moisture, throw out or content of impurities, one or more mixing oils of mineral oil, synthetic oil, semi synthetic base oils or vegetables oil are formed.
In the structure of described bridging agent one end active function groups can with unsaturated link(age), hydroxyl, carboxyl isoreactivity radical reaction in pitch, form chemical crossbond, the hydrated calcium silicate produced in the other end and cement hydration process or calcium aluminate combine and form chemical crossbond, form irreversible bond effect.
The tack coat of modified asphalt waterproof sealing compound of the present invention is owing to being mixed with bridging agent, asphalt tack coat and concrete binding are irreversible, cohesive strength is large, unit elongation is large, even if basal plane expands with heat and contract with cold and produces displacement and even to ftracture or adhesive surface is subject to the immersion of water and the effect of hydraulic pressure for a long time, still keep bond effect;
The present invention is first join in emulsified bitumen by softening oil for the preparation of the production method of bridging agent waterproof sealing cream, mix, then add bridging agent and obtain bridging agent modifying asphalt, then bridging agent modifying asphalt is mixed with rubber latex, auxiliary agent, water to obtain simultaneously and produce waterproof sealing cream.The sufficient quantity properties-correcting agent more different than prior art is have employed in formula system of the present invention, make rubber asphalt mixture can realize good emulsifying effect, substantially improve dry after the elasticity of sealing ply and intensity, make sealing effectiveness can be more good and lasting; Use bridging agent, made to form chemical anastomosis between concrete, improved and pitch and concrete cohesive force; And utilization thickening material, adjust the viscosity of suitable sealing compound system, make reaction bonded type node sealing compound can the thick painting of facade do not glide, sagging.
Softening oil in above-described bridge linking type modified asphalt waterproof sealing compound production, described modified asphalt waterproof sealing compound is used for roofing, pond, vault, culvert or needs the position of WATER REPELLENT.
The reason of formulation bridging agent modified asphalt waterproof cream softening oil standard of the present invention is:
Because pitch is easy to the performance of solidifying, therefore, need to add softening oil in production modified asphalt waterproof sealing compound, properties-correcting agent is softened, swelling, weaken intermolecular reactive force.Under the effect of stirring or grind, properties-correcting agent can be dispersed, forms network decussate texture, obviously improve the performances such as the high/low temperature of pitch.But not every oils can play swelling ramollescence, and oils is of a great variety in the market, do not have clear and definite technical indicator, quality is uneven, the impact large on the quality comparision of production of bridging agent modifying asphalt.The present invention at the enterprising professional etiquette model of the parameter of product, can play the effect of benign development.
The invention has the beneficial effects as follows:
1, the mineral oil of all size, synthetic oil, semi synthetic base oils or vegetables oil can be used to adjust, these oil are used for the raw material as modified asphalt waterproof sealing compound, substantially increase the comprehensive utilization ability of resource.
2, in production bridging agent modifying asphalt process, add softening oil, properties-correcting agent softened, swelling, weaken intermolecular reactive force.Under the effect of stirring or grind, bridging agent can be dispersed, forms network decussate texture, obviously improve the performances such as the high/low temperature of pitch.The inflation method of the softening oil in 3, described modified asphalt waterproof sealing compound production, according to volatile quantity, pour point, or add the technical indicator of viscosity, flash-point, moisture, throw out or content of impurities, one or more mixing oils of mineral oil, synthetic oil, semi synthetic base oils or vegetables oil are formed.
4, for the industry provides operable standard.
Accompanying drawing explanation
Fig. 1 is the process flow sheet of waterproof sealing cream production method of the present invention.
See from figure, the present invention, by vegetables oil, synthetic oil, mineral oil, adds bridging agent and auxiliary agent obtains.Then just can mix with pitch, make waterproof sealing cream, be applied in the construction works such as body of wall, roofing, vault.
Embodiment
The present invention is that softening oil mixes afterwards and auxiliary agent joins in pitch for the preparation of the method for bridging agent waterproof sealing cream, add properties-correcting agent, emulsifying agent, bridging agent, thickening material, toughener and water again, conventionally waterproof sealing cream (raw material that following examples provide is weight part, and % is % by weight) is produced after mixed and modified.
Embodiment 1: softening oil 1
40 parts of PAO polyalphaolefin synthetic oils, 50 parts of hydraulic efficiency oil and 10 portions of Oleum Gossypii semens are mixed, each technical indicator provided according to foregoing invention content, measures its volatile quantity: 3%; Pour point :-12 DEG C; The kinematic viscosity of 40 DEG C is 30mm
2/ S; Flash-point: 230 DEG C; Drop on filter paper with glass stick and observe, the spot on filter paper is faint yellow to yellow, and nonirritant taste; Moisture: 0.1%; Throw out or mechanical impurity: 0.1%.
Embodiment 2: softening oil 2
50 parts are mixed by solvent deasphalting, solvent dewaxing, solvent treatment, hydrofining or acid-alkali refining, the second line of distillation oil of the technique such as clay-filtered, 35 parts of polyethers synthetic oils and 15 parts of phosphoric acid ester synthetic oils, according to each technical indicator that foregoing invention content provides, measure its volatile quantity: 4%; Pour point :-11 DEG C; The kinematic viscosity of 40 DEG C is 65mm
2/ S; Flash-point: 230 DEG C; Drop on filter paper with glass stick and observe, the spot on filter paper is faint yellow to yellow, and nonirritant taste; Moisture: 0.05%; Throw out or mechanical impurity: 0.1%.
Embodiment 3: softening oil 3
By 35 parts of second line of distillation oil by solvent deasphalting, solvent dewaxing, solvent treatment, hydrofining or acid-alkali refining, the technique such as clay-filtered, 25 parts by solvent deasphalting, solvent dewaxing, solvent treatment, hydrofining or acid-alkali refining, the technique such as clay-filtered subtract third fractional oil and 40 parts of plam oils mix, according to each technical indicator that foregoing invention content provides, measure its volatile quantity :≤3%; Pour point :≤-15 DEG C; The kinematic viscosity of 40 DEG C is 40mm
2/ S; Flash-point: 260 DEG C; Drop on filter paper with glass stick and observe, the spot on filter paper is faint yellow to yellow, and nonirritant taste; Moisture: 0.06%; Throw out or mechanical impurity: 0.08%.
Embodiment 4: softening oil 4
40 portions of subtract third fractional oil, 30 parts of silicon ester synthetic oils and 30 portions of Oleum Gossypii semens by solvent deasphalting, solvent dewaxing, solvent treatment, hydrofining or acid-alkali refining, the technique such as clay-filtered are mixed, according to each technical indicator that foregoing invention content provides, measure its volatile quantity: 4%; Pour point :-15 DEG C; The kinematic viscosity of 40 DEG C is 60mm
2/ S; Flash-point: 260 DEG C; Drop on filter paper with glass stick and observe, the spot on filter paper is faint yellow to yellow, and nonirritant taste; Moisture: 0.04%; Throw out or mechanical impurity: 0.07%.
Embodiment 5: softening oil 5
45 parts of alkylbenzene synthetic oils, 35 parts of polyphenylene oxide synthetic oils and 20 parts of Viscotrol C are mixed, each technical indicator provided according to foregoing invention content, measures its volatile quantity: 2%; Pour point :-14 DEG C; The kinematic viscosity of 40 DEG C is 87mm
2/ S; Flash-point: 240 DEG C; Drop on filter paper with glass stick and observe, the spot on filter paper is faint yellow to yellow, and nonirritant taste; Moisture: 0.1%; Throw out or mechanical impurity: 0.15%.Embodiment 6: prepare waterproof sealing cream
Embodiment 6: prepare waterproof sealing cream
With above-described embodiment 2 softening oil (weight) 6 parts, pitch 50 parts, allyltrichlorosilane
bridging agent0.5 part, SBS rubber 4 parts, filler carbon black 40 parts, 2 parts of cation asphalt emulgents, 40 parts, water, 5 parts of thickening material wilkinites, first by asphalt heating to 80 DEG C, slowly add softening oil, make it arrive softening, then 160-200 DEG C is warmed up to, after pitch reaches molten state, add SBS rubber, allyltrichlorosilane stirring reaction 0.5-2 hour, rear to mix with cation asphalt emulgent, water and through colloidal mill emulsification, add wilkinite and filler carbon black again, mix and obtain waterproof sealing cream.
Embodiment 7: prepare waterproof sealing cream
With above-described embodiment 4 softening oil (weight) 4 parts, pitch 40 parts, Aluminate bridging agent 3 parts, 8 parts, styrene-butadiene rubber(SBR), hydroxide filler magnesia powder 45 parts, 3 parts of cation asphalt emulgents, 35 parts, water, 4 parts of thickening material methylcellulose gum, first by asphalt heating to 80 DEG C, slowly add softening oil, it is made to arrive softening, then 160-200 DEG C is warmed up to, after pitch reaches molten state, add styrene-butadiene rubber(SBR), Aluminate stirring reaction 0.5-2 hour, afterwards with cation asphalt emulgent, water mixing and through colloidal mill emulsification, add methylcellulose gum and hydroxide filler magnesia powder again, mix and obtain waterproof sealing cream.
Embodiment 8: prepare waterproof sealing cream
With above-described embodiment 5 softening oil (weight) 12 parts, pitch 40 parts, mercaptopropyltriethoxysilane bridging agent 2 parts, 10 parts, styrene-butadiene rubber(SBR), 35 parts, filler-calcium carbonate powder, 1.5 parts of cation asphalt emulgents, 30 parts, water, 3.5 parts of thickening material sodium alginates, first by asphalt heating to 80 DEG C, slowly add softening oil, it is made to arrive softening, then 160-200 DEG C is warmed up to, after pitch reaches molten state, add styrene-butadiene rubber(SBR), mercaptopropyltriethoxysilane stirring reaction 0.5-2 hour, afterwards with cation asphalt emulgent, water mixing and through colloidal mill emulsification, add sodium alginate and filler-calcium carbonate powder again, mix and obtain waterproof sealing cream.
Comparative example:
Two kinds of traditional soft carburetion (specific targets are as table 1) are adopted to be made into waterproof according to embodiment 6 and the same formula of embodiment 7 and technological process respectively, be respectively comparative example 1 and comparative example 2, carry out high temperature according to " building slab junction waterproof sealing cream " standard, low temperature detects, comparing result is as table 2:
After testing, all technical detected result reaches " building slab junction waterproof sealing cream " standard rating, is suitable for industrial mass and applies the waterproof paint of the embodiment of the present invention 6 and embodiment 7.
Claims (6)
1. softening oil is preparing the application of bridge linking type modified asphalt waterproof sealing compound.
2. softening oil according to claim 1 is preparing the application of bridge linking type modified asphalt waterproof sealing compound, it is characterized in that, described softening oil is formed by one or more mixing oils of mineral oil, synthetic oil, semi synthetic base oils or vegetables oil adjustment.
3. softening oil according to claim 1 is preparing the application of bridge linking type modified asphalt waterproof sealing compound, it is characterized in that, described mineral oil, synthetic oil and semi synthetic base oils are qualified GB oil or nonstandard oil, comprise mineral lubricating oils, complete synthesis lubricating oil, semi-synthetic lubricating oil, hydraulic efficiency oil, peanut oil, Oleum Gossypii semen, plam oil, soya-bean oil or Viscotrol C.
4. softening oil according to claim 1 is preparing the application of bridge linking type modified asphalt waterproof sealing compound, it is characterized in that, the key technical indexes of softening oil is as follows:
(1) volatile quantity :≤6%;
The described volatile quantity method of inspection: take 100g softening oil with the beaker of 250ml, take total amount m1, be placed in 200 ± 2 DEG C of high-temperature test chambers, constant temperature 1.5h, is cooled to 23 ± 2 DEG C, weighs total amount m2, calculates volatile quantity=(m1-m2)/100g × 100%;
(2) pour point :≤-10 DEG C;
The minimum temperature that can flow when described pour point refers to that softening oil cools under prescribed conditions.
5. softening oil according to claim 1 is preparing the application of modified asphalt waterproof sealing compound, it is characterized in that, softening oil the key technical indexes also comprises:
Viscosity: the kinematic viscosity of 40 DEG C is 10-200mm
2/ S;
Described kinematic viscosity is express liquid the measuring of internal friction when flowing under gravity, and its value is compare between the kinetic viscosity of liquid under uniform temp and its density;
Flash-point: >=180 DEG C;
Described flash-point is under regulation test conditions, and test flame causes sample vapor ignition, and makes propagation of flame to the minimum temperature of fluid surface, under being adapted to 101.3kPa normal atmosphere;
Outward appearance and smell: drop on filter paper with glass stick and observe, the spot on filter paper is faint yellow to yellow, and nonirritant taste;
Moisture :≤0.2%;
Throw out or mechanical impurity :≤0.2%.
6. softening oil according to claim 1 is preparing the application of bridge linking type modified asphalt waterproof sealing compound, it is characterized in that, the inflation method of softening oil, according to volatile quantity, pour point, or add the technical indicator of viscosity, flash-point, moisture, throw out or content of impurities, one or more mixing oils of mineral oil, synthetic oil, semi synthetic base oils or vegetables oil are formed.
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Application publication date: 20151223 |